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Home : ITU-R : SG03 : Contributions : 91 | Recently posted - Search Meeting Documents | |||||||||||||||||||||||||||||||||||||||
[91] Draft revision of Question ITU-R 213-2/3 - The short-term forecasting of operational parameters for trans-ionospheric radiocommunication and aeronautical radionavigation services | ||||||||||||||||||||||||||||||||||||||||
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